A USB 3.0 connection requires five conductors, and the connectors are blue in color. Backward compatibility is typically provided by including four additional conductors, as shown in the image here.

Micro USB and USB-C are still both common kinds of connectors you'll find in electronics. Here are the differences between ...

There are a few ways to differentiate USB 2.0 and 3.0 ports and connectors. The easiest way is to check if the USB port has a splash of blue color inside, which signifies the newer USB 3.0 interface.